Rotary water-motor.



Patented June 16, 1914.

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UNITED STATES PATENT OFFICE.

CHRISTIAN CARL TUCH, 0F HONOLULU, TERRITORY OF HAWAII.

ROTARY VVA'IER-MOTOR.

To all whom it may concern:

Be it known that I, CHRISTIAN C. TUOI-I, a citizen of the United States,residing at Honolulu in the county of Honolulu and Territory of Hawaii,have invented new and useful Improvements in Rotary Water- Motors, ofwhich the following is a specification.

This invention relates to rotary water motors or turbines, the object ofthe invention being to provide a simple and practical form of turbinemotor of the class described, which embodies novel means for takingadvantage of both the reaction of the water pressure and the directaction of the pressure, and delivering the power, generated by thecombined act-ion referred to, to a common shaft, from which the powermay be belted off to any suitable point.

A further object of the invention is to provide in a motor of the classdescribed, a rotor embodying an inner member operating on the reactionprinciple, and an outer member rigidly connected to and carried by theinner member and acting under the direct pressure of the water, the saidouter and inner members of the rotor being connected to a common shaftfor transmitting the power generated by the motor as a whole.

With the above and other objects in view, the invention consists in theconstruction, combination and arrangement of parts, as will behereinafter more fully described, illustrated in the accompanyingdrawings, and pointed out in the claims hereunto appended.

In the drawings: Figure 1 is a vertical longitudinal section through aturbine motor, embodying the present invention. Fig. 2 is a verticaltransverse section through the same, taken diametrically of the shaft.

The motor contemplated in this invention comprises a suitable supportingbase 1 provided with upwardly extending and oppositely arrangedpedestals 2. To the structure comprising the parts 1 and 2, a rotorcasing is secured, said casing embodying a cylindrical outer wall 3, andthe end or head walls 41 and 5. As shown in Fig. 2, the wall 3 may beprovided with inturned flanges 5,

to which the side walls or heads may be bolted or secured in any desiredmanner,

In order to give access to the casin and enable the same to be removedfrom t e remainder of the structure, one of the pedes- Specification ofLetters Patent.

Application filed May 16, 1913.

Patented June 16, 1914. Serial No. 768,117.

tals, shown at the right hand side of Fig, 2, may be detachablyconnected to the base 1 by bolts 6, or the equivalent thereof.

7 designates the shaft of the motor on which the rotor is mounted fast,the said shaft 7 being hollow or provided with a central longitudinalbore 8 which communicates with the corresponding bore 9 of an outerstationary shaft section 10 forming an inlet for the water which is thusfed to the center of the rotor and distributed outwardly tangentiallytherefrom. With this object in view, the rotor comprises a rim 11concentrio with the shaft 7 and arranged at a suitable distancetherefrom and connected thereto by means of hollow spokes 12 which arecurved in the direction of their length, so as to form substantiallytangential discharge orifices or nozzles 13, by means of which the waterpassing outwardly under pressure through the channels or passages in thespokes is directed tangentially against a circular series of fixed vanes14.

Any desired number of vanes 14 may be employed in the construction ofthe motor, and these vanes are inclined in a direction reverse to thedirection of the outer ends of the spokes 12, as clearly shown in Fig.1, so that as the water escapes from the discharge orifices 13, it isdirected almost per-' pendicularly to the inner concaved faces of theblades 14, said blades being substantiall y concavo-convex in crosssection, as shown in Fig. 1.

All of the concavo-convex vanes 14- are connected to a common fixed rim15, near the outer edges of the vanes, as shown in Fig. 2, and the rim15 is provided adjacent to the concavo face of each vane with an openingor port 16, through which the water contained in the pockets formedbetween the vanes is discharged, in the form of a strong jet against acircular series of blades 17, which constitute the outer section ormember of the motor, the inner section of which is formed by the shaft8, the spokes l2 and the rotary rim 11.

The blades 17 of the outer series are concavo-conveX in cross section,being similar in shape to the vanes 14,-, and the said blades 17 areinclined reversely to the vanes 14, so that as the water escapes throughthe ports 16 under the direction given thereto by the concaved faces ofthe vanes, the jets of water are directed tangentially from the fixedrim 15 and almost perpendicularly against the concaved faces of theblades 17, so that the direct action of the water is made effective atthis point, the same operating directly against the blades 17 to propelthe outer section or member of the rotor.

The blades 17 are connected to the inner member of the rotor at one sideby means of a web 18, as shown in Fig. 2, while the stationary vanes 1dare connected at one side to a web 19 which is formed integrally withthe bearing 20 of one of the pedestals 2, in which the shaft 7 isjournaled, as shown in Fig. 2-.

21 and 22 designate stufiing boxes for preventing leakage of the waterthrough the bearing 23, in which the hollow end of the shaft 7 isjournaled, as shown in Fig. 2, said stufiing boxes being adjust-able bymeans of bolts 24 and nuts 25.

From the foregoing description, it will now be seen that the waterdelivered under pressure into the hollow shaft 8 of the rotor is carriedoutwardly through the hollow spokes 12, and escaping from thetangentially arranged ports or orifices 13 at the outer extremities ofsaid spokes and in the rim 11, is directed against the stationary vanes14, thereby setting up a reaction which causes a rotation of the shaft 7and rim 11 in an anti-clockwise direction, as indicated by the arrows inFig. l. The direction of the water arrested by the vanes 14 is changed,and the water is delivered tangentially from the stationary rim 15against the blades 17 of the outer section of the rotor, the water atthis point acting directly against the blades 17 to propel the outersection of the rotor in the same direction as the inner section of therotor. In this way, advantage is taken of the direct and indirect actionof the water under pressure in escaping from the hollow shaft 8 into theouter annular exhaust water space 26 and. the spaces 27 and 28at'opposite sides of the rotor, the water then passing through an outletor exhaust port 29 shown for convenience as extending through the baseor bed 1 of the motor,

30 designates radially extending reinforccm" of thin patent mav beobtained for ing ribs on the outer side of the web 19 of the stationaryrim 15.

What is claimed is:

1. A combined direct and reaction turbine motor, comprising oppositelyarranged bearing pedestals, a tubular water intake shaft journaledrotatably in said pedestals, a stationary cylindrical casing, a circularseries of stationary vanes supported by oneof said pedestals, and arotor fast on said shaft and comprising an inner member and an outermember, said members being arranged upon the inner and outer sides,respectively, of the circular series of stationary vanes, and the outermember embodying a circular series of blades which are inclinedreversely to the stationary vanes, whereby the inner member of the rotorreceives its motion through the reaction of the water and the outermember of the rotor is propelled by the direct action of the water.

2. In a turbine motor, the combination of a cylindrical stationarycasing having an outlet, oppositely arranged bearing pedestals, atubular water intake shaft journaled rotatably in said pedestals, astationary disk supported by one of said pedestals, a stationary rim onsaid disk concentric with said shaft located between the shaft and theeasing and provided with openings through the same, a series ofstationary inclined vanes on the inner side of the fixed rim, and arotor embodying an inner member and an outer member arranged,respectively, at opposite sides of said stationary rim and vanessupported thereby, the inner nzember embodying a rotary rim, and tubularspokes connecting said rotary rim with the hollow shaft and opening outtangentially through said rotary rim, the outer member embodying acircular series of blades inclined reversely to the stationary vanes andhaving a fixed relation to the inner member of the rotor.

In testimony whereof I affix my signature in presence of two witnesses.

CHRISTIAN CARL TUCH. lVit-nesses:

H. K. SGHOLEFELD, OSWALD MAYATT,

five cent: each, by addrening the Gomminloner of Patents. Washington, D.G." i

